If bricks is installed in /usr/include/bricks, its source code should not be in spot/bricks but in ./bricks, and the Debian package libspot-dev should also ship /usr/include/bricks (which is not the case).

If bricks is distributed in spot/bricks/, then I expect it to be installed in /usr/include/spot/bricks/, and the Debian and RPM specs (before this patch) are both fine. In that case the bug is that spot/Makefile.am declares bricks with nobase_include_HEADERS instead of include_HEADERS.